Answer:
1. 4 generations
2. the father/male parent carries the recessive allele (individual 2 of the 1st generation)
3. individual 1 has a hom.ozygous spouse.
4. Generation 3
Explanation:
sorry if any of these are wrong
(also i had to put a period there so it wouldnt identify hom.ozygous as a slur)
Answer:
I think it is either the first or the second one
Explanation:
I think that the numerical expresion for this problem is 17.5
Blood flows to the brain through the internal carotid and vertebral arteries and away from the brain through the internal jugular vein. The internal carotid artery supplies the brain, while the external carotid nourishes other portions of the head, such as the face, skull, scalp and the meninges. The vertebral arteries provide supply to the upper spinal cord, brainstem, cerebellum, and the posterior part of the brain.
Answer:
Plants use electric fields to communicate with bees, scientists have learned.
Bumblebees are able to find and decipher weak electric signals emitted by flowers, according to the study.
Tests revealed that bees can distinguish between different floral fields, as if they were petal colours. The electric signals may also let the insects know if another bee has recently visited a flower.
Explanation:
How bees detect the fields is unknown, but the researchers suspect the electrostatic force might make their hair bristle. A similar hair-raising effect is seen when placing one's head close to an old-style TV screen.
Flowers were already known to use bright colours, patterns and enticing scents to attract pollinators.
