BIOLOGY MIDDLE SCHOOL

PLEASE HELP ME!!!!!which of these pieces of evidence did Alfred Wegener's original theory of continental drift have access to?

A)seafloor spreading at mid-ocean ridges

B)reversing paleomagnetism in rocks on the ocean floor

C)evidence of ancient tropical swamps in cold regions of North America

D)
a seafloor that was geologically active with earthquakes, volcanoes, and mountain chains

Answers

Answer 1
Answer: A sea floor spreading at mid ocean ridges
Answer 2
Answer:

Answer:

C. Evidence of ancient tropical swamps in cold regions of North America

Explanation:

I took the test here is my proof that this is correct (Hope I helped):

Related Questions

Anole lizards mainly eat small insects. Suppose an anole lizard saw a bright red butterfly and ate it, but was ill afterwards. For the rest of its life, the anole lizard refused to eat red butterflies even when it was hungry. What type of behavior is the anole lizard exhibiting when it avoids hunting red butterflies? A. social behavior B. innate behavior C. territorial behavior D. learned behavior
Which of the following is one of the basic elements of life?A. SodiumB. WaterC. NitrogenD. Air
Many higher organisms must maintain a strict internal temperature. There can be serious consequences if the internal temperature deviates even slightly. What is the name of the process which controls the internal temperature? A) osmosis B) homeostasis C) chemosynthesis D) warm bloodedness
Organisms that are responsible for taking in light energy to make their own food are known as which of the following?
Why is free oxygen a problem for many organisms

fossils are commonly found in which type of rock? A.paleolithic B. sedimentary C. igneous D. metamorphic

Answers

B.sedimentary 

fossils are commonly found in sedimentary rocks
Fossils are commonly found in B. Sedimentary

What is a small, rocky object that orbits the Sun and is usually found in a belt between Mars and Jupiter?

Answers

asteroid belt is between mars and Jupiter

Asteroids

i know because i had a quiz and got it right

Larger trees growing in an ecosystem is an example of, _____.A. Rapid Change
B. Human Impact
C. Extinction
D. Forrest Succession

Answers

It's d. Forrest succession
The answer is D. Forrest succession

This is because the rate at which the trees grew is not given so we can't accurately say it is a rapid change. Human impact couldn't be correct because it never said humans had anything to do with it. Extinction means a large group of living things or a species dies off so that couldn't be correct either. The forest growing large trees is a successful growth of a forest. Therefore, it must be D.

Hope this helped!

Organisms with advantageous adaptations are more likely to survive and reproduce than organisms without the advantageous adaptations. This phenomena is known as natural selection.In order for natural selection to occur
A.) organisms within a population must have some genetic variation.
B.) there must be more male organisms than female organisms.
C.) all of the organisms within a population must be exactly the same.
D.) one population must become extinct so another can be created.

Answers

Inorder for natural selection to occur organisms within a population must havesome genetic variation. Naturalselection is when species learn to adapt to their environment. They could (1)differential reproduction, that is, not all organisms are able to reproduce totheir fullest capacity because nature cannot simply sustain it and (2) acquire genes,that is heredity. Certain characteristics of organisms tend to survive if itcontinues to strive. If it survives, this trait is passed down to the nextgenerations forgetting the other traits but only the one who could survive theenvironment. Therefore it is true that natural selection is when‘organisms inherit advantageous traits, and tend to reproduce more successfullythan other organisms’.

A. organisms within a population must have some genetic variation.

A slow reproduction process is a disadvantage of which form of reproduction?

Answers

The correct answer is Sexual Reproduction. Unlike cell division, sexual reproduction creates new offsprings instead of copies of the biological parents and there is a time period that takes for the fetus to mature and grow inside the womb before birth. Unlike this, cell division is easy and fast and just creates a copy of the previous cell.

Which summary best explains the mechanisms that control the cell cycle in multicellularorganisms?
The type of DNA in each cell controls the rate of the cell cycle and the specific type of cells
formed
The size of the cell determines the number of cells that will be produced from each cycle.
Internal and external signals regulate the progression of the cell cycle at various critical
checkpoints
Hormones signal the start of the cell cycle, and DNA determines how the cell differentiates.

Answers

Answer:

The correct answer is internal and external signals regulate the progression of the cell cycle at various critical check points.

Explanation:

The cyclic event that helps to prepare the cell for division is termed as cell cycle.Cell cycle are regulated by various internal and external factors which regulates the passage of cell through various critical check point.

 For example Maturation promoting factor helps in the progression of frog egg oocytes cells from G2 to M phase.

    G1 cyclin CDK helps in the passage of cell from G1 to S phase.
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What do B cells produce?