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barxatty [35]
3 years ago
5

What did the phase-contrast microscope allow scientists to study?

Biology
1 answer:
kvv77 [185]3 years ago
3 0
Viruses research study related
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The table below shows the depths at which an index fossil and three other fossils were found. Which statement is correct?
Harrizon [31]
I believe the answer is B
6 0
3 years ago
Pls help with me who is good in science!!!​
mestny [16]

Question 1.

Detrital or Classic are 2 rocks that weather and become sandstone.

Question 2.

Metamorphic and Ingenious Rock is called a Migmatite.

Question 3.

There are three types of rocks in this one. Rhyolite, Pumice, and Basalt.

Question 4.

Energy and Heat from the Sun cause the Matter to start cycling and the Process of Wheatheing Begins.

Question 5.

The Earth's internal heat produces things such as melting, crystallization, and deformations to some rocks.

(Here are the answers I know and managed to gather over some time hope you get it all correct even if I'm wrong in some good luck and take care)

5 0
2 years ago
A woman with type A blood (whose father was type O) has children with a man that has type O blood. Both individuals are heterozy
Fantom [35]

Answer:

Explanation:

A woman with type A blood (whose father was type O) meaning her genotype is AO mates with

Man that has type O blood (OO genotype)

Both are heterozygous for MN blood group and both also heterozygous for the FUT1 gene controlling the synthesis of the H substance (Hh)- which determines the expression of the A and B antigen.

Cross

A O M N H h

O AO OO M MM MN H HH Hh

O AO OO N MN NN h Hh hh

Type A- 1/2 O-1/2 type M- 1/4 MN-1/2 N- 1/4, type H- 3/4 h-1/4

Type A with M antigen:

1/2*1/4*3/4 = 3/32

Type A with M and N antigens:

1/2*1/2*3/4 = 3/16

Type A with N antigen:

1/2*1/4*3/4 = 3/32

Type O with M antigen:

1/2*1/4*3/4= 3/32

Type O with M and N antigens:

1/2*1/2*3/4 = 3/16

Type O with N antigen:

1/2*1/4*3/4 = 3/32.

The 3/4 value comes from the expression of Hh-3/4 (this determines if the A and B Angie will be expressed).

8 0
3 years ago
Explain the working method of tongue​
melamori03 [73]

Explanation:

Chewing, grinding, pressing, salivating

When we chew, the tongue and the cheeks work together to constantly move the food between the teeth so that it can be chewed. The tongue presses the crushed food against the palate and moves this bolus, which is then ready to be swallowed, to the throat.

3 0
3 years ago
Read 2 more answers
Why dose the amount of water in a river change during the year
Marizza181 [45]
Hello! 
The amount of water in a river varies for each particular area. Whether the area has been receiving rainfall or a drought. 
Seasons also play a role; if it's Spring, you may receive more rainfall and have a higher water levels. If it's Summer, you may experience a drought, causing lower water levels.
Although that was not very much information, I thought I'd provide a small bit of information. Hope it helps. :)
8 0
3 years ago
Read 2 more answers
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