b. lancelet
c. sea star
d. sand dollar
The study of animals is called zoology.
The correct answer to the question is option B which is lancelet.
A group of classes is called phylum which helps to classify the species having the same characteristics.
According to the question, lancelets belong to the chordate while others were the example of Echinodermata.
Hence, the correct answer to the question is option B.
For more information about the phylum, refer to the link:-
The right answer is; This is important for laboratory safety.
Before using any chemical in the lab, one should first read the Material Safety Data Sheet (MSDS) because it is important for laboratory safety.
A Material Safety Data Sheet (MSDS) is a technical document that contains detailed information about the protective measures to take, and the possible hazards of a chemical. The Material Safety Data Sheet (MSDS) is available for all the chemicals used in the laboratory and it may be written, printed or electronic.
Answer;
-Triglyceride or Fats
Explanation;
-Fat consists of two parts: glycerol backbone and three fatty acids tails. fatty acid consists of long hydrocarbon chain and a carboxyl group. glycerol is organic molecule with three hydroxyl groups.
-Triglycerides are fats from the food we eat that are carried in the blood. Most of the fats we eat, including butter, margarines and oils, are in triglyceride form. They are the most common type of fat in the body. Triglycerides are necessary for health but in excess amounts, they may be harmful and may increase the risk of heart disease.
B. luteal
C. gastrulation
D. follicular
Answer:
The asnwer is C. Gastrulation.
Explanation:
Gastrulation is one of the stages of early embryonic development through which the trilaminar germinative disk is formed, which is a structure with three differentiated embryonic layers that will give rise to all the organs and tissues of the embryo. Gastrulation occurs just after embryo segmentation and implantation, that is, when the embryo has already been divided into many cells, it has become a blastocyst and has managed to nest in the endometrium, beginning pregnancy.
Knowing this, it can be concluded that it is not related to the menstrual cycle.
I believe the correct answer is gastrulation.
The menstrual cycle is divided into the follicular phase, the menstrual phase, ovulation phase and the luteal phase. The Ovulation phase is a phase between the menstrual cycle just before menstruation starts. Gastrulation on the other hand is a phase in embryogenesis after fertilization has occurred.
This is a phase in between the menstrual cycle and is triggered by a hormone produced by the anterior pituitary gland and is called the Luteinizing hormone. The phase is when the egg has matured from the graafian follicle after it bursts. This egg will travel into the fallopian tube by the help of special structures called fimbriae hoping to be fertilized. If fertilized, the egg will attach to the uterus. If not, it is removed as menstrual blood during menstruation. In this stage, the basal body temperature of the lady increases and she will have more "feelings" for sexual intercourse.
It is triggered by the hormone Luteinizing Hormone (LH) that is released by the anterior pituitary gland. After the graafian follicle releases the ovum, it (graafian follicle) matures into the corpus luteum that produces copious amounts of the hormones progesterone and estrogen to prepare the uterus for implantation by thickening it and making the mucus of the cervix more thinner to allow passage of sperms. If the lady does not become pregnant, the corpus luteum will die and the uterine wall sheds in the menstrual phase.
This is the first phase and it starts on the first day the lady sees her period. It starts due to the anterior pituitary gland secreting the hormone follicle stimulating hormone (FSH) .The hormone will stimulate formation of ovarian follicles in the ovaries and only one matures and produces estrogen to inhibit all the other eggs from maturing and also thickening the uterus. It lasts for 14 days. The ovarian follicle matures into the graafian follicle that enters the ovulatory phase.
This is totally unrelated to the menstrual cycle and it is found in embryology after the egg has been fertilized during the menstrual cycle and matures into an embryo. In this stage of embryogenesis, there is formation of the gut of a developing embryo
Level: High School
Subject: Biology
Topic: Reproduction
Answer: Both processes create energy. Photosynthesis creates glucose (energy from the sun is converted to chemical energy) and oxygen for the cell while cellular respiration creates energy for the cell.
Explanation: Photosynthesis and cellular respiration are two important processes. Photosynthesis occurs only in plants while cellular respiration occurs in both plants and animals.
In photosynthesis, plants use carbon dioxide, water and sunlight to produce glucose and oxygen while in cellular respiration both plants and animals breakdown glucose in the presence of oxygen to produce carbon dioxide, water and energy. The light energy conserved in glucose during photosynthesis is broken down during cellular respiration to release chemical energy.
The chemical equation for photosynthesis is 6CO2+ 6H2O + sunlight --> C6H12O6 + 6O2.
The chemical equation for cellular respiration is C6H12O6 + 6O2 --> 6CO2 + 6H2O + Energy. The energy produced in cellular respiration is used to carry out other cellular processes.
Photosynthesis occurs in the chloroplast which is an organelle found only in plant cells while cellular respiration occurs in the mitochondria.
Photosynthesis uses carbon dioxide and water produced in cellular respiration while cellular respiration uses glucose and oxygen produced in photosynthesis. This means that the two processes depend on each other for the supply of its reactants.