Answer:
c. all of these
Explanation:
Humans are animals as they are multicellular eukaryotic organisms that are mobile, heterotrophic and can reproduce sexually.
On further classification they belong to the phylum chordates as they possess the five anatomical features present in this phylum at some point in their lives. These features are presence of notochord, endostyle, pharyngeal slits, tail and dorsal nerve chord. They also have bilateral symmetry and possess a coelom.
Humans can be further classified as vertebrates as they possess the vertebral column. It is also known as backbone or spine and is characterized by segmented bone series separated by intervertebral discs. Hence, humans are animals, chordates and vertebrates.
The Benedict’s Test is the test which can detect carbohydrates and glucose in foods. During this process, the sample or the food is placed into a test tube and then some drops of Benedict's solution is added to it,and is then put into a beaker of boiling water. When the mixture of food and the Benedict substance turns reddish orange instead of staying blue, this means that it is positive. The mixture has simple sugar or has carbohydrates or glucose. On the other hand, lipids are tested using the brown paper test. When the paper turns transparent when a drop of food is put into it, it means that is is positive as well. When you want to test if the food has proteins, you have to test it with Biurets. Observe if the color change when you put some Biurets solution to the food sample. It is positive if the food turns light purple. Test if the food is positive with starches through the use of iodine. Food having iodine drops should turn purple instead of staying a yellow color.
Answer:
reducing gases of the greenhouse, reducing plastic products, reuse renewable energies.
Explanation:
Nowadays we have plenty of problems because of the greenhouse gases, the main effect is the big hole of ozone in Earth atmosphere, the main effect of this hole is that the temperature is increasing, so the oceans temperature increases some species will dye.
Plastic products since they have a very long term life in Earth is very difficult to our planet to biodegrade, so the accumulation in soil and water we can see the effects in the big islands of treasure that is formed in oceans, and how the aquatic animals are eating them instead of food.
Renewable energies are other example of how we can use other sources of energy instead of petroleum products, in this way we avoid air pollution because of the fossil fuels burning.
Answer:
A)
Hh * hh
Hh, Hh, hh, hh
Out of four two calves are horned. Thus ratio of horned calves is
B)
Hh * Hh
HH, Hh, Hh, hh
Out of four one calf is horned. Thus ratio of horned calf is
C)
Hh * hh
Hh, Hh,hh, hh
Out of four two are polled . Thus ratio of polled calves is
Explanation:
Allele for dominant polled /hornless cattle is H
Allele for recessive horned cattle is h
A) Polled bull X horned Cow A ----> horned calf
This signifies that the polled bull is heterozygous with genotype Hh
Hh * hh
Hh, Hh, hh, hh
Out of four two calves are horned. Thus ratio of horned calves is
B) Polled bull X polled Cow B ----> horned calf
Both Bull ad cow are heterozygous with genotype Hh
Hh * Hh
HH, Hh, Hh, hh
Out of four one calf is horned. Thus ratio of horned calf is
C) Polled bull X horned Cow C ----> polled calf
Hh * hh
Hh, Hh,hh, hh
Out of four two are polled . Thus ratio of polled calves is
Answer:
because the truck is moving
Explanation:
the force of the engine is bigger than the fractional force so the truck keep moving and do not stop.