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tangare [24]
2 years ago
12

What causes birds to fly?

Biology
2 answers:
ELEN [110]2 years ago
5 0
The things that birds have attached to their bodies called their wings, a left one and a right one, cause them to have the ability to fly.
Snezhnost [94]2 years ago
4 0

Answer:

there wings

Explanation:

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Use the numbers 1,2,3, 4, and 5 to place the
Softa [21]

Answer:

1- Information is transcribed in DNA to mRNA 

2- mRNA leaves the nucleus

3- Ribosome attaches to the mRNA

4- tRNA anticodon carries an amino acid that compliments the mRNA codon

5- The chain of amino acids forms a protein

Explanation:

4 0
3 years ago
For fertilization to occur in humans, only one sperm is needed to weaken the barrier that surrounds the egg.
photoshop1234 [79]

Answer:

False

Explanation:

Approximately 200 out of 200 million sperms ejaculated during intercourse reach the general vicinity of the egg.  They sperms must undergo capacitation during which dilute inhibitory factors fluids of the female reproductive tract weaken the membrane of the sperm head so that head of the sperm can be broken easily when it came in contact with the egg.

The first sperm to reach an egg isn’t the one to fertilize it because the egg is surrounded by a gelatinous membrane called the zona pellucida. Outside this layer, a layer of small granulosa cells also present.

Therefore, it requires numerous sperm to clear a path through these barriers before one of them can penetrate the egg and fertilize it.

8 0
3 years ago
The part of an atom that is mostly empty space is the
morpeh [17]

The part of an atom that is mostly empty space is the electron cloud

4 0
3 years ago
Read 2 more answers
Why is it important to avoid applying too much nitrogen fertilizer?
solniwko [45]

Answer:

too much nitrogen in surface runoff can cause algae to overgrow

Nitrogen fertilizers used in large-scale agriculture could leave a legacy of pollution that would persist for decades in soil and groundwater, scientists in France and Canada warned, which published a study in the National Academy of Sciences magazine, " PNAS ". According to these scientists, the excess of these fertilizers in the environment has been linked to contaminated drinking water and can cause the rapid growth of algae that compromise aquatic ecosystems and coastal marine life.

Explanation:

Brainliest please?

7 0
2 years ago
Primary growth or lengthening of plants results from mitotic division in cells of which tissue? A.Axillary buds B.Lateral merist
Anastaziya [24]
The correct answer is (b.) Lateral meristem. Primary growth or lengthening of plants results from a mitotic division in cells of a tissue, lateral meristem. This meristematic tissue are group of cells that has the ability to divide. 
7 0
3 years ago
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