This Ecology PPT is for high school biology students and follows the outline for Miller & Levine's Biology textbook, 2013 Virginia edition, Chapter 3, SOL strands Bio.8a and Bio.8b. There is no voice-over in this PPT version and all rights are reserved.
Use of the cladogram (Darwin's Tree of Life) to classify organisms in evolutionary terms. Chapter 18 in the Miller & Levine Biology text, Virginia edition.
Eleven slides critical for the general high school biology student to understands prior to taking the VDOE SOL. This is the first set of 10-15 to be published.
M&L Biology Chap 4 Ecosystems & CommunitiesGary Dickens
This PPT delivers the content from Miller & Levine's Biology text, Virginia edition. The content applies to Va SOL Bio.8a and 8b. Video Content will not play on SlideShare.
Transmission Spectroscopy of the Habitable Zone Exoplanet LHS 1140 b with JWS...Sérgio Sacani
LHS 1140 b is the second-closest temperate transiting planet to the Earth with an equilibrium temperature low enough to support surface liquid water. At 1.730±0.025 R⊕, LHS 1140 b falls within
the radius valley separating H2-rich mini-Neptunes from rocky super-Earths. Recent mass and radius
revisions indicate a bulk density significantly lower than expected for an Earth-like rocky interior,
suggesting that LHS 1140 b could either be a mini-Neptune with a small envelope of hydrogen (∼0.1%
by mass) or a water world (9–19% water by mass). Atmospheric characterization through transmission
spectroscopy can readily discern between these two scenarios. Here, we present two JWST/NIRISS
transit observations of LHS 1140 b, one of which captures a serendipitous transit of LHS 1140 c. The
combined transmission spectrum of LHS 1140 b shows a telltale spectral signature of unocculted faculae (5.8 σ), covering ∼20% of the visible stellar surface. Besides faculae, our spectral retrieval analysis
reveals tentative evidence of residual spectral features, best-fit by Rayleigh scattering from an N2-
dominated atmosphere (2.3 σ), irrespective of the consideration of atmospheric hazes. We also show
through Global Climate Models (GCM) that H2-rich atmospheres of various compositions (100×, 300×,
1000×solar metallicity) are ruled out to >10 σ. The GCM calculations predict that water clouds form
below the transit photosphere, limiting their impact on transmission data. Our observations suggest
that LHS 1140 b is either airless or, more likely, surrounded by an atmosphere with a high mean molecular weight. Our tentative evidence of an N2-rich atmosphere provides strong motivation for future
transmission spectroscopy observations of LHS 1140 b.
Probing the northern Kaapvaal craton root with mantle-derived xenocrysts from...James AH Campbell
"Probing the northern Kaapvaal craton root with mantle-derived xenocrysts from the Marsfontein orangeite diatreme, South Africa".
N.S. Ngwenya, S. Tappe, K.A. Smart, D.C. Hezel, J.A.H. Campbell, K.S. Viljoen
Lunar Mobility Drivers and Needs - ArtemisSérgio Sacani
NASA’s new campaign of lunar exploration will see astronauts visiting sites of scientific or strategic
interest across the lunar surface, with a particular focus on the lunar South Pole region.[1] After landing
crew and cargo at these destinations, local mobility around landing sites will be key to movement of
cargo, logistics, science payloads, and more to maximize exploration returns.
NASA’s Moon to Mars Architecture Definition Document (ADD)[2] articulates the work needed to achieve
the agency’s human lunar exploration objectives by decomposing needs into use cases and functions.
Ongoing analysis of lunar exploration needs reveals demands that will drive future concepts and elements.
Recent analysis of integrated surface operations has shown that the transportation of cargo on the
surface from points of delivery to points of use will be particularly important. Exploration systems will
often need to support deployment of cargo in close proximity to other surface infrastructure. This cargo
can range from the crew logistics and consumables described in the 2023 “Lunar Logistics Drivers and
Needs” white paper,[3] to science and technology demonstrations, to large-scale infrastructure that
requires precision relocation.
Testing the Son of God Hypothesis (Jesus Christ)Robert Luk
Instead of answering the God hypothesis, we investigate the Son of God hypothesis. We developed our own methodology to deal with existential statements instead of universal statements unlike science. We discuss the existence of the supernaturals and found that there are strong evidence for it. Given that supernatural exists, we report on miracles investigated in the past related to the Son of God. A Bayesian methodology is used to calculate the combined degree of belief of the Son of God Hypothesis. We also report the testing of occurrences of words/numbers in the Bible to suggest the likelihood of some special numbers occurring, supporting the Son of God Hypothesis. We also have a table showing the past occurrences of miracles in hundred year periods for about 1000 years. Miracles that we have looked at include Shroud of Turin, Eucharistic Miracles, Marian Apparitions, Incorruptible Corpses, etc.
SCIENTIFIC INVESTIGATIONS – THE IMPORTANCE OF FAIR TESTING.pptxJoanaBanasen1
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This an presentation about electrostatic force. This topic is from class 8 Force and Pressure lesson from ncert . I think this might be helpful for you. In this presentation there are 4 content they are Introduction, types, examples and demonstration. The demonstration should be done by yourself
Possible Anthropogenic Contributions to the LAMP-observed Surficial Icy Regol...Sérgio Sacani
This work assesses the potential of midsized and large human landing systems to deliver water from their exhaust
plumes to cold traps within lunar polar craters. It has been estimated that a total of between 2 and 60 T of surficial
water was sensed by the Lunar Reconnaissance Orbiter Lyman Alpha Mapping Project on the floors of the larger
permanently shadowed south polar craters. This intrinsic surficial water sensed in the far-ultraviolet is thought to be
in the form of a 0.3%–2% icy regolith in the top few hundred nanometers of the surface. We find that the six past
Apollo Lunar Module midlatitude landings could contribute no more than 0.36 T of water mass to this existing,
intrinsic surficial water in permanently shadowed regions (PSRs). However, we find that the Starship landing
plume has the potential, in some cases, to deliver over 10 T of water to the PSRs, which is a substantial fraction
(possibly >20%) of the existing intrinsic surficial water mass. This anthropogenic contribution could possibly
overlay and mix with the naturally occurring icy regolith at the uppermost surface. A possible consequence is that
the origin of the intrinsic surficial icy regolith, which is still undetermined, could be lost as it mixes with the
extrinsic anthropogenic contribution. We suggest that existing and future orbital and landed assets be used to
examine the effect of polar landers on the cold traps within PSRs
Dalghren, Thorne and Stebbins System of Classification of AngiospermsGurjant Singh
The Dahlgren, Thorne, and Stebbins system of classification is a modern method for categorizing angiosperms (flowering plants) based on phylogenetic relationships. Developed by botanists Rolf Dahlgren, Robert Thorne, and G. Ledyard Stebbins, this system emphasizes evolutionary relationships and incorporates extensive morphological and molecular data. It aims to provide a more accurate reflection of the genetic and evolutionary connections among angiosperm families and orders, facilitating a better understanding of plant diversity and evolution. This classification system is a valuable tool for botanists, researchers, and horticulturists in studying and organizing the vast diversity of flowering plants.
