BIOLOGY MIDDLE SCHOOL

Whet era does the rock of the Canadian Shield date back to

Answers

Answer 1
Answer: it dates back to the Precambrian era

Related Questions

In the immune system, which cell is responsible for recongnizing an antigen producing the activating B- cell proteins?A) T- helper cellsB) T- killer cellsC) PhagocytesD) Lymphocytes
What is an object that helps explain ideas about the natural world
Select all that apply. Which characteristics are always present in all living organisms? movement heredity reproduction homeostasis sensitivity metabolism cells
How do the structures in an organism relate to their functions
Elements used to make for computers include germanium and : a. oxygen or b. silicon

Sort the mutations based on whether their effects are harmful, beneficial, or neutral to the organisms that experience them.a mutation in a noncoding
region of DNA
a mutation that
Ancierses the ability
to store moisture
ina y environment
a color mutation
that decreases a
bird's chances
of sexual selection
a mutation in a gene
that does not change
protein synthesis
increased white
pigmentation on
a prey animal in a
Snowy environment
a mutation decreasing
a plant's height in
competition for light
Harmful
Beneficial
Netural

Answers

Answer:

first option  nuetral

second option is benificial only if it required mositure

third harmful decreasing the sexual trait will effect the survial rate and it all depending how on way it can reproduce

icreasing white sprot is benifical

Explanation:

Need help ASAP!!!!! Will friend request and write something nice on wall.

Answers

the answer is the second one b

in terms of energy what kind of system is the oceans conveyor belt A. open B.static C.destructive D.closed

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Answer Is Option A. OPEN !

This is a wetland food web. When the organisms you see here die, they become food for ____________, which help recycle matter back into the food web.

Answers

I'm not 100% sure but I think the answer is other organisms.

1. How is cell division different in plant and animal cells? Give at least 2 important differences.

Answers

1. animals develop a cleavage furrow during cytokinesis but plants do not. 
2. plants develop a cell plate during cytokinesis

What is the difference between a moth and a butterfly?

Answers

The difference between butterflies and moths is a lot like the difference between frogs and toads. There are some rules of thumb you can follow to tell them apart, but there are also exceptions to those rules. Next, we'll look at exactly what makes a butterfly different from the moth and what clubs and feathers have to do with it.
Other Questions
What are sections of DNA that code for specific traits or functions.
How many genes are required todetermine a polygenic trait?A. oneB. two or moreC. several thousand
what would most likely happen to the entire ocean food web if plankton were not available? A. all organisms that live in the ocean would not survive B. the organisms would adapt and find another source of food C. only whales and other ocean mammals would be affected?
A scientific theory is more accurate then a scientific law? True or false